Does anyone know where to find Dowflake/Peladow/Tetraflake or the like in Northern California (more specifically the Sacramento area)? I've been calling around and I can't even find it in the higher country (Placerville) where it snows. Everything I'm coming across for ice melt seems to be either magnesium chloride or potassium chloride. In the end I may have to order it online and pay shipping that's more than the bag of Dowflake to begin with ($22/50# plus $33/shipping); but still cheaper than Hardness Up from the pool store.